Graded insulation
[电] 层级绝缘
🧩 词语组成解析
a. 分等级的；按年级分的
insulation
[ˌinsju'leiʃən]
n. 隔离，孤立;绝缘;绝缘或隔热的材料;隔声;
🗣️ 情景例句
You must be green to believe that!
你真幼稚，竟然相信那个。
How many of these are you going to send him?
你要送多少给他？
Hello. You look tired today.
你好。你今天显得有点儿累。